Vacuum cleaner



FIG. 1 is a front perspective view of a vacuum cleaner showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left-side elevation view thereof;

FIG. 5 is a right-side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a rear perspective view thereof;

FIG. 9 is enlarged view of the encircled portion in FIG. 1; and,

FIG. 10 is enlarged view of the encircled portion in FIG. 8.

The dashed broken lines illustrate portions of the vacuum cleaner that form no part of the claimed design.

The dot-dash broken lines in the figures encircle portions of the claimed design that are illustrated in an enlargement and form no part of the claimed design. 

CLAIM The ornamental design for a vacuum cleaner, as shown and described. 